Evolution of nervous systems

The nervous system is how our bodies communicate with the world. It uses special cells called neurons to sense things (like touch and sound) and sends signals throughout our bodies to make things happen (like making our muscles move). Over millions of years, animals developed more complex nervous systems. This allowed them to do things like think, solve problems, and make decisions. With a more complex nervous system, animals could learn from their experiences and adapt better to their environment. For example, certain animals with bigger brains could find food more easily, which meant they were more likely to survive and have young. Over time, these changes in the nervous system would be passed down from one generation to the next. This is how natural selection and evolution have shaped the modern nervous system.